Threats Tagged 'cve-2026-53006'

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Kernel: Privilege escalation via uninitialized data in vmci transport packet (CVE-2025-38403) * kernel: netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry (CVE-2026-43114) * kernel: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels (CVE-2026-46099) * kernel: rxrpc: Fix potential UAF after skb_unshare() failure (CVE-2026-45998) * kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056) * kernel: RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss() (CVE-2026-46117) * kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145) * kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006) * kernel: ice: fix double-free of tx_buf skb (CVE-2026-53009) * kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196) * kernel: scsi: target: iscsi: Validate CHAP_R length before base64 decode (CVE-2026-63886) * kernel: crypto: qat - validate RSA CRT component lengths (CVE-2026-64304) Bug Fix(es) and Enhancement(s): * smb: client: use actual path when queryfs (JIRA:RHEL-145425) * RT scheduler livelock caused by missing backport of 94894c9c477e [rhel-9.4.z] (JIRA:RHEL-244408) * kernel warning : kernel/softirq.c:306 do_softirq_post_smp_call_flush+0x29/0x60 when system is booted with nosmt [rhel-9.4.z] (JIRA:RHEL-80300) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056) * kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006) * kernel: ice: fix double-free of tx_buf skb (CVE-2026-53009) * kernel: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp (CVE-2026-53071) * kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196) * kernel: i2c: stub: Reject I2C block transfers with invalid length (CVE-2026-64191) * kernel: can:bcm: arbitrary kernel code execution leading to escalate privileges (CVE-2026-17523) * kernel: packet: use consistent hard_header_len in non-ring send paths () For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock() (CVE-2025-40149) * kernel: netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry (CVE-2026-43114) * kernel: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels (CVE-2026-46099) * kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056) * kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145) * kernel: smb/client: fix out-of-bounds read in smb2_compound_op() (CVE-2026-46155) * kernel: crypto: ccp - copy IV using skcipher ivsize (CVE-2026-53016) * kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006) * kernel: scsi: target: iscsi: Validate CHAP_R length before base64 decode (CVE-2026-63886) * kernel: crypto: qat - validate RSA CRT component lengths (CVE-2026-64304) Bug Fix(es) and Enhancement(s): * Memory leak in metadata_dst leading to OOM [rhel-10.0.z] (JIRA:RHEL-125758) * Kernel panic in cached_dir_offload_close [rhel-10.0.z] (JIRA:RHEL-128580) * RHEL10.0 - s390/pci: Fix __pcilg_mio_inuser() inline assembly [rhel-10.0.z] (JIRA:RHEL-161485) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Squashfs: sanity check symbolic link size (CVE-2024-46744) * kernel: ksm: use range-walk function to jump over holes in scan_get_next_rmap_item (CVE-2025-68211) * kernel: Bluetooth: SCO: fix race conditions in sco_sock_connect() (CVE-2026-43023) * kernel: netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry (CVE-2026-43114) * kernel: net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels (CVE-2026-46099) * kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056) * kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145) * kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006) * kernel: ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table() (CVE-2026-64002) * kernel: crypto: qat - validate RSA CRT component lengths (CVE-2026-64304) * kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480) * kernel: vhost: reset the vring metadata cache on vring reconfiguration (CVE-2026-74580) Bug Fix(es) and Enhancement(s): * [RHEL 9] Bonding reports unknown speed/duplex for tg3 interface [rhel-9.6.z] (JIRA:RHEL-182767) * [RHEL9] tlbflush - Windows Driver Verifier catches FLTMGR/Ntfs crashes during KVM 42-VM soak test on AMD EPYC Turin [rhel-9.6.z] (JIRA:RHEL-214435) * vhost: reset the vring metadata cache on vring reconfiguration [rhel-9.6.z] (JIRA:RHEL-224548) * [RHEL9] BUG: KASAN: global-out-of-bounds in scsi_sysfs_add_host+0x179/0x1b0 [rhel-9.6.z] (JIRA:RHEL-234440) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: KVM: x86: Don't (re)check L1 intercepts when completing userspace I/O (CVE-2025-40026) * kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125) * kernel: xen: AMD Zen 2 Processors: Privilege escalation via improper CPU cache isolation (CVE-2025-54518) * kernel: selinux: fix overlayfs mmap() and mprotect() access checks (CVE-2026-46054) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: net: bridge: use a stable FDB dst snapshot in RCU readers (CVE-2026-46086) * kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006) * kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993) * kernel: iommu/vt-d: Avoid NULL pointer dereference or refcount corruption (CVE-2026-53281) Bug Fix(es) and Enhancement(s): * rxrpc: Address CVE-2026-43500 [rhel-10.2.z] (JIRA:RHEL-178254) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: net: bridge: use a stable FDB dst snapshot in RCU readers (CVE-2026-46086) * kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006) * kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993) * kernel: iommu/vt-d: Avoid NULL pointer dereference or refcount corruption (CVE-2026-53281) Bug Fix(es) and Enhancement(s): * rxrpc: Address CVE-2026-43500 [rhel-10.2.z] (JIRA:RHEL-178254) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in icmpv6_rcv() Caching saddr and daddr before pskb_pull() is problematic since skb->head can change. Remove these temporary variables: - We only access &ipv6_hdr(skb)->saddr and &ipv6_hdr(skb)->daddr when net_dbg_ratelimited() is called in the slow path. - Avoid potential future misuse after pskb_pull() call.

In the Linux kernel, the following vulnerability has been resolved: net: bridge: use a stable FDB dst snapshot in RCU readers Local FDB entries can be rewritten in place by `fdb_delete_local()`, which updates `f->dst` to another port or to `NULL` while keeping the entry alive. Several bridge RCU readers inspect `f->dst`, including `br_fdb_fillbuf()` through the `brforward_read()` sysfs path. These readers currently load `f->dst` multiple times and can therefore observe inconsistent values across the check and later dereference. In `br_fdb_fillbuf()`, this means a concurrent local-FDB update can change `f->dst` after the NULL check and before the `port_no` dereference, leading to a NULL-ptr-deref. Fix this by taking a single `READ_ONCE()` snapshot of `f->dst` in each affected RCU reader and using that snapshot for the rest of the access sequence. Also publish the in-place `f->dst` updates in `fdb_delete_local()` with `WRITE_ONCE()` so the readers and writer use matching access patterns.